Jordan engine lining



occ 15,1946. QSTU K Em "2.409. 52

JORDAN ENGINE 1.1mm

Filed July 5, 1941 2 Sheets-Sheet 2 Patented Oct. 15, 1946 UNITED STATESPATENT OFFlCE JORDAN ENGINE LINING Harold D. Stuck, Andover, and WilliamW. Bolton, North Andover, Mass, assignors to John W. Bolton & Sons,1110., Lawrence, Mass, a corporation of Massachusetts Application July5, 1941, Serial No. 401,066

4 Claims. 1

This invention relates to Jordan engines and particularly to what isknown as the lining of a Jordan shell or the jacket or lining of aJordan plug. The plug and the shell are both of truncated conical formand generally the knives of the shell are bent near the middle and thereare usually two or three sections each with bent filling knives. On theother hand, the bars on the plug are usually straight but are often ofdifferent lengths.

In either case however, the knives'or bars generally have parallel sidesso that what are known as Woods or separators which go between them mustbe of keystone shape in cross section and must be wedge shapedlengthwise. The side faces of the separators converge and the radialfaces are usually parallel. On radial face is exposed tothe paper stockand the other face rests against the shell or against the plug' We willcall the shell or plug the backing.

We are aware that knives have been bent to formsections of substantiallyequal length and when several sections of shell lining are put togetherthese form a number of cutting or strol;' ing members with all thepoints of the angles'cf the bends facing in the same direction which isin the direction of rotation of the plug. This side therefore wears outfaster than the other side.

One feature of our device 'is forming the knives with two bends so thatthere are two angles and three sections which preferably are ofdifferent lengths. This allows the plug to be reversed if desired toequaliz the "wear.

Our invention is intended particularly for cutting up cotton, potatoes,and other vegetables for use in the manufactur of nitro-cellulose wherethe fibre must be cut as fine as of an inch in length.

For this purpose the fibre should not be hydra'ted to a great extent andwith our device we can use slush or paper stock with three or four percent of fibre and after it has passed through our Jordan engine, it canbe dewatered so that it will be thirty or forty per cent.

Our device allows the use of a large number of thin knives whereby wesecure mor cutting with less hydrating as with our construction thestock does not stand in any recesses so as to cause dead ends but is inconstant movement, going rapidly through the machine but at the sametime the stock does not run too rapidly either through the channelsbetween the knives or bars or spirally.

The main purpose of our device is to so interrupt and agitate the stockas it passes through the Jordan, usually from the smallto the large end,

that it Will all be carried-out between the knives of the shell and thebars of the Jordan plug so that there will be no part of it which runsthrough the machine without being uniformly cut to length.

Another advantage is that with our construction, the plug can berevolved in either direction to get good results as the cutting will beequally effective either way and the channels between knives and barswill not fill up.

We accomplish this purpose by specially bending the knives of the shell;by providing them with a certain type of serrations as distinguishedfrom corrugations or straight edges; and by forming theworking faces, oroutside radial faces, of the separators in'waves or ripples of such acharacter that the stock cannot run freely through from end to end buton the other hand, cannot lie stagnant in any place. i

We are aware that there have been corrugated cutting members such: asshown and described in patent to -Bolt0lC1, N0. 2,120,482 of June 14,1938,-

but the feature of our present invention is what we will call serrationsBy serrations we mean angular alternate bends at the cutting edge ofa'cutting member (each with relatively straight sides substantiallylonger than the sides of corrugations which are generally formed asshort reverse lcurves. Our serrations are preferably formed with sharpangles rather than with rounded curves;

Another feature'of our invention is the provi sion of separating memberswhich, in the case of the shell filling-are bent to conform to the shapeof the cutting knives, whether theseknives have one or two bends. Eachseparating member is formed on the face which is to be exposed, that ison one of its radial faces, with a series or ripples extending outwardand inward or radially like waves. Each ripple preferably has a longface at a low angle with the edges of the cutting members and a shortface at a high angle therewith. The long face of each ripple in theshell is preferably towards the small end of the shell and the shortface towards the large end. By a wave or ripple, we mean a contour ofcurves, without sharp edges, extending longitudinally and of such acharacter that the flow of the stock will be retarded but not stopped. ia

With the separating members for the plug, the long face is preferablytowards the large end and the short face is towards the small end.However we can use separators with ripples having faces of equal lengthand at variousangles. Preferably the angles or bends between the facesshould be curved rather than sharp.

Preferably also we form the rippled face with a thin strip of material,rippled as described, and glued on so that when worn down, an entirestrip can be removed leaving the correct rippled effect for continuedservice, thus maintaining uniform results through the normal life of theknives.

We prefer to combine separators having rippled or irregular radialworking faces with serrated cutting members and, in the case of theshell, with cutting members bent in two places to form three sections ofunequal length but we can use these features in various sub-combinationsor with other features which may be new or old.

Preferably, as between adjoining or proximate separators, the high spotsof the ripples are staggered or offset and in many cases these highspots can come close to the cutting edges of the cutting members toassist in causing the stream of stock to be interrupted and be directedfrom plug to shell or shell to plug.

Preferably also the transverse as well as the longitudinal faces, ofsome or all of the separators can be curved to follow the fiow of thestock as it whirls between the cutting members or to interrupt it asdesired.

In the drawings, S generally represents a Jordan shell and P a Jordanplug. Where it is intended that either can be used, the letter Bindicates that we will call the backing for the filling or lining madeup of cutting members C and separating members W.

As is customary, there will be one or more assembled axial sections ofcutting members and separating members extending around the inside of aJordan lining or, if desired, around the outside of a Jordan plug.

In Figs. 1 to 7, C represents cutting members rial.

made of thin strips of metal, each of which as shown has parallel sides,and each of which is formed with serrations along one edge which is theworking edge, each of the serrations being formed by sharp bends at 6with sides 4 and 5 with a sharp angle 6 between them. These sides 4 and5 are each preferably at an angle of less than thirty degrees with theaxis of the Jordan. The bottom part I of each cutting member hasparallel sides and has no serrations. This is the side or edge whichrests on a backing such as B, S, or P.

If the cutting members are for a shell lining, each is bent in Z shapewith three parts I, 2, and 3 of unequal length.

In the drawings, Fig. 1 is an isometric view of part of the end of aJordan shell showing parts of two conical sections of filling, eachprovided with cutting members or knives bent in two places and eachcrimped on its cutting edge, separated by separators which conform tothe sides of the cutting members and which also are formed with rippleson the working surface, the high spots of which ripples alternate or arestaggered in adjoining channels between the cutting members.

Fig. 2 is an isometric view of the small end of a Jordan plug withstraightcutting members and separating members, the cutting member beingserrated on their working edges and the separating members beingrippled, the ripples in adjoining channels being staggered oralternating.

Fig. 3 is a plan view of a cutting member such as shown in Fig. 1 bentand crimped.

Fig. 4 is a plan view of a separating member before it is bent and Fig.5 is an elevation of such a separating member before it is bent.

Fig. 6 is a detail plan view showing three cutting members withseparating members between them of the type shown in Fig. 1, and

Fig. '7 is an elevation, with parts broken away of the assembly shown inFig. 6.

Fig. 8 is a transverse sectional view on the line 8-8 of Fig. 7 but withthe cutting and separating members resting on a backing.

Fig. 9 is a plan view of a modified form of cutting member.

Fig. 10 is an elevation of part of a cutting member and a separatingmember, the cutting member having a straight edge without serrations andthe separating member having ripples of modified shape.

Fig. 11 is a fragmentary view similar to Fig. 7 showing parts of twocutting members and parts of two separating members.

Fig. 12 is a view similar to Fig. 8 of an assembly of cutting membersand separating members of a modified form.

Fig. 13 is a sectional View similar to Fig. 12 of another modified formof assembly of cutting members and separating members, separatingmembers having a working face of a different shape.

Fig. 14 is a detail view showing the adjoining cutting members of a plugand a shell of another modification of the separating members andshowing another relation between the separating members and the cuttingmembers.

W, W, represent the separating members which are usually made of wood orsome similar mate- These members, if they are for the shell are bent atH, I2 and E3 in the same way as cutting members C at l, 2, 3 and areformed from end to end in the usual wedge shape with transverse verticalgrooves at l8, I8, which extend from the top edge H8 down to the bottomI! so that each one can be bent to fit the adjoining cutting member.

The top is formed with ripples which extend radially in and out eachwith a long face l4 and a short face l5 with curves [6, it, betweenthem.

The curves are to avoid any sharp corners or depressions in which theslush can settle.

As shown, the top face is a thin strip In which rests on and conforms tothe ripples whereby the whole top face can be removed when it becomesworn, leaving a new face 20 or so that the depth of the channel can beregulated.

As shown in Fig. 8, the high spots such as I9 of the ripples ofadjoining separators need not be opposite to each other but can bestaggered.

As shown in Fig. 9, a cutting member such as A having serrations 25, 25,which extend all the way from the top to the bottom and which have longarms 24 and short arms 26 can be used if desired.

As shown in Fig. 10, a cutting member such as F which is straight andwhich has no serrations, can be used with a separatin member G withirregular ripples 2|, 22, 23.

As shown in Fig. 11, a cutting member such as H which is straight butformed with serrations 30, 39, can be used with separating members L, L,having ripples 3| and 32 in which the long slopes of adjoining orvarious separators can slope in opposite directions and the short slopescan face in opposite directions, the slopes being of various shapes.

As shown in Fig. 12, cutting members such as M, M, of any type restingagainst any kind of a backing B can be used with separating mem-- bersN, N, the working faces of which are not only rippled longitudinally butare formed transversely with irregularly curved faces such as 33 and 39.

As shown in Fig. 13, the working faces 5!], 58 of separators R, R,between cutting members 0, O, as in shell S, can be so curved as toconform more or less to the swirling of the stock.

As shown in Fig. 14, the high spots 40 of some of the separators 4! cancome up to the cutting edge 42 of cutting members 43 of the shell S andhigh spots 44 of some of the separators 45 can come up to the edge 46 ofcutting members 41 of the plug P. They thus interrupt or deflect theflow of the stock momentarily but only until other cutting and sepratingmembers pass as the plug revolves.

We claim:

1. The combination with a frustro-conica1 Jordan engine backing; ofaplurality of cutting members each member being bent to form sections,each cutting member being formed on its cutting edge with serrations,each serration having a straight edge disposed at an angle of less thanthirty degrees with the general direction of the cutting member; andseparating members between the cutting members and conforming to theshape thereof up to and including part of the serrations, theseparatingmembers being formed on their exposed faces in successive ripples, eachripple having a long face at a low angle with the edges of the cuttingmembers and a short face at a high angle therewith.

2. The combination with a frustro-conical Jordan engine backing; of aplurality of cutting members each member being bent to form sections,each cutting member being formed on its cutting edge with serrations;and separating 3. The combination with a frustro-conical Jordan enginebacking; of a plurality of cutting members; and separating membersbetween the cutting members and conforming to the shape thereof from thebottom up to near the working edges, each separating member being formedon its exposed face with high spots and with low spots forming ripples,the exposed face of each ripple having a contour of curves without sharpedges, extending longitudinally, the high spots in adjoining channelsbeing staggered.

4. The combination of a frustro-conical Jordan engine shell having alining formed of inwardly projecting metal cutting members, each cuttingmember being bent to form more than two sections and each cutting memberbeing formed on its cutting edge with serrations, and non-metallicseparatin members positioned between the cutting members and conformingto the shape thereof from the bottom up to near the cutting edge, aplurality of the separating members being formed on their exposed facein successive radial ripples; with a frustro-conical Jordan engine plugrevoluble inside the shell, the plug having a plurality of cuttingmembers each cutting member being formed on its cutting edge withserrations, and separating members positioned between the cuttingmembers of the plug and conforming to the shape thereof from the bottomup to near the cutting edge, the separating members being formed ontheir exposed faces in successive radial ripples. V

HAROLD D. STUCK. WILLIAM W. BOLTON.

